A dominant performance from Colin Turkington in the last race of the day sets up the final meeting at Brands Hatch to be a thriller.
At lights out, Turkington charged away from pole position as Rowbottom came across to cover off Jake Hill successfully.
Ash Sutton shortly found his way to the grass thanks to Jake Hill, but the reigning champion was able to maintain his position.
Jack Butel and Sam Smelt, however, were not so lucky and both spun to trigger the first safety car of Round 27.
Aron Taylor-Smith had a convincing start, gaining a massive 6 positions by the fifth lap.
Local man, Stephen Jelley also had a strong getaway pushing his way up to 11th from 15th.
Turkington pulled a 1.5 second gap at the front of the field, leading Rowbottom and Hill behind him.
Five-second penalties where applied to Rowbottom, Dan Lloyd and Nicolas Hamilton for being out of position in their start grid slots.
Sutton piled on the pressure to Tom Ingram, forcing Ingram to drive smartly to block the inside line at every possible overtaking opportunity.
Rowbottom and Hill continued to fight all through Lap 12, but Rowbottom lost out to Aiden Moffat, Josh Cook and Jake Hill as well as Rory Butcher.
A train ensued from seventh to 19th positions, and was headed by Lloyd.
BTC Racing driver Senna Proctor retired to the pitlane from a points-scoring position.
Meanwhile Turkington had a five second gap to Hill by Lap 15 as the BMW ran unchallenged by any of his rivals behind.
Sam Osborne and Tom Chilton collided briefly at the exit of the Crainer Curves, but Osbourne managed to rejoin a few places down.
Turkington won his 60th BTCC race in a dominant fashion from his reverse grid pole position.
Jake Hill and Aiden Moffat completed the podium spots, followed by Rory Butcher and Josh Cook.
Two Dans followed behind: Rowbottom and Lloyd for sixth and seventh.
Sutton took eighth, Jelley took ninth, and Tom Ingram claimed 10th.
Still with an edge on Ingram in the standings, Sutton comes into the final race meeting at Brands Hatch with a 32-point lead.
The Laser Tools Racing driver targets a third driver’s championship at the finale – a consecutive title since he debuted the new Infiniti Q50 last year.
Top 10 Race Finishers:
1st: Colin Turkington
2nd: Jake Hill
3rd: Aiden Moffat
4th: Rory Butcher
5th: Josh Cook
6th: Daniel Rowbottom
7th: Daniel Lloyd
8th: Ash Sutton
9th: Stephen Jelley
10th: Tom Ingram